Federal food safety officials have announced a recall of several types of frozen pizzas sold nationwide under the Digiorno and California Pizza Kitchen (CPK) brand names, due to possible contamination with sharp plastic fragments that may pose a risk for consumers when the pizzas are eaten.

The problems were discovered after consumer complaints indicated that there were sharp triangular pieces of plastic in the frozen pizzas, resulting in at least one injury for a consumer who chipped their tooth after biting into the pizza.

The manufacturer, Nestle Pizza Company, has determined the foreign plastic pieces are associated with spinach used in the production process for the recalled pizzas.

Consumers may locate the production codes on a blue or pink rectangular box on one of the sides of the pizza box. The production codes are the first ten digits printed on the second line within the box.

The recalled pizzas were produced by Nestle Pizza Company of a Little Chute, Wisconsin between February 2013 and March 2013 where they were distributed directly to retailers nationwide.

Extraneous materials such as plastic may enter food products due to problems at several points within the production process. Prior recalls have been linked to faulty manufacturing maintenance or failure to inspect items received from suppliers.

Consumers with recalled frozen pizzas should stop eating the product immediately and contact Nestle USA Consumer Services at (800) 456-4394 or email them at [email protected] for instructions on how to obtain a free replacement coupon or to possibly schedule a retrieval of the product to be further examined.